Round: 54 Ground: Clay
| ITF Italy F21 | 2015/08/07 13:00 | Marco Bortolotti v Collin Altamirano | 6-2,6-0 |
| ITF Italy F21 | 2015/08/06 14:10 | Collin Altamirano v Omar Giacalone | 2-6,6-4,6-2 |
| ITF Italy F21 | 2015/08/05 09:55 | Collin Altamirano v Daniel Masur | 6-2,6-2 |
| ITF Italy F21 | 2015/08/04 12:35 | Maximilian Marterer v Collin Altamirano | 5-7,4-6 |
| ITF Italy F20 | 2015/07/27 12:00 | Collin Altamirano v Fabio Mercuri | 6-7,7-6,1-6 |
| ITF Italy F17 | 2015/07/07 15:00 | Collin Altamirano v Stefano Travaglia | 2-6,6-7 |
| US Open Qual | 2014/08/21 23:00 | Ricardas Berankis v Collin Altamirano | 2-6,6-1,6-1 |
| US Open Qual | 2014/08/20 15:00 | Luca Vanni v Collin Altamirano | 4-6,2-6 |
| ITF Italy F14 | 2015/06/15 14:15 | Pietro Licciardi v Giovanni Fonio | 6-1,6-4 |
| ITF Italy F14 Qual | 2015/06/14 13:50 | Giovanni Fonio v Filippo Mora | 6-0,7-5 |
| ITF Italy F14 Qual | 2015/06/13 15:00 | Andrea Vavassori v Giovanni Fonio | 6-7,4-6 |
| ITF Italy F32 Qual | 2014/09/13 07:30 | Giovanni Fonio v Lorenzo Sonego | 7-6,1-6,1-6 |